BUG: read_csv throws UnicodeDecodeError with unicode aliases

removed `pd` from `pd.DataFrame`
see issue pandas-dev#13549

Author: nateGeorge

pandas/io/tests/parser/common.py

@@ -1473,7 +1473,7 @@ def test_memory_map(self):
     def test_read_csv_utf_aliases(self):
         # see gh issue 13549
         path = 'test.csv'
-        expected = pd.DataFrame({'A': [0, 1], 'B': [2, 3],
+        expected = DataFrame({'A': [0, 1], 'B': [2, 3],
                                  'multibyte_test': ['testing123', 'bananabis'],
                                  'mb_nums': [154.868, 457.8798]})